For the function f(x) = x + 7, what is the ordered pair for the point on the graph when x = 2b?

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Answer 1 · 2016-09-01T18:19:07

#(x,y)=(2b, 2b+7)#.

#f(x)=x+7#

When #x=2b#, we get, from the Defn. of #f#,

#y=f(x)=f(2b)=2b+7#

Now, the Graph of #f={(x,y) : y=f(x)}#

Hence, the reqd. ordered pair corresponding to

#x=2b," is "(x,y)," where, "y=f(2b)=2b+7#, i.e.,

#(x,y)=(2b, 2b+7)#.